Haier HCFU-42CF03 Service Manual
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Haier HCFU-42CF03 Service Manual

Commercial air conditioning
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Commercial Air Conditioning
SERVICE MANUAL
Features
Long distribution pipe and high drop
Auto-check function
Flexible and easy installation
Fresh air hole, more natural, more healthy
Infrared remote controller & wired controller
Optional safety devices and much more precision control device
Manual code: SYJS-007-06REV.1
Model
HCFU-42CF03
HCFU-42HF03
Edition: 2006-07-21

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Summary of Contents for Haier HCFU-42CF03

  • Page 1 Commercial Air Conditioning SERVICE MANUAL Model HCFU-42CF03 HCFU-42HF03 Features Long distribution pipe and high drop Auto-check function Flexible and easy installation Fresh air hole, more natural, more healthy Infrared remote controller & wired controller Optional safety devices and much more precision control device Manual code: SYJS-007-06REV.1...

  • Page 2: Table Of Contents

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 CONTENTS Contents………………………………………………………...2 1. Description of products & features………………………..3 2. Specification…………………………………………………6 3. Safety precaution……………………………………………9 4. Net dimension of indoor and outdoor……………………..11 5. Installation instructions………..……………………………13 6. Parts and functions…………………………………………24 7. Remote controller functions……………………………….25 8. Refrigerant diagram………………………………………...37 9.

  • Page 3: Description Of Products & Features

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 1.DESCRIPTION OF PRODUCTS & FEATURES 1.1. Products code explanation H CFU---18 H F 03 Applicable voltage: 03 stands for 200-220V/50Hz Design number Product type: H stands for heat pump type, C stands for cool...
  • Page 4 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 1.4 Products line up 1.4.1 Outdoor unit HCFU-42CF03 HCFU-42HF03...
  • Page 5 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 1.5 Product features 1.5.1 Outdoor unit Flexible and easy installation The outdoor can meet the higher request of installation. From the specifications, you will find for each unit, how long and how high the piping will be, which will be convenient for design and installation.

  • Page 6: Specification

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 2. SPECIFICATION item Model HCFU-42CF03 Function cooling heating Capacity BTU/h 42000 12.3 Capacity Sensible heat ratio Total power input 4600 Max. power input 5700 EER or COP 2.67 Dehumidifying capacity 10 ³×m³/h Power cable section 5G×2.5mm2...
  • Page 7 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 item Model HCFU-42HF03 Function cooling heating Capacity BTU/h 42000 48000 12.3 14.06 Capacity Sensible heat ratio Total power input 4600 4600 Max. power input 5540 5220 2.67 3.06 EER or COP Dehumidifying capacity 10 ³×m³/h...
  • Page 8 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Installation state: the unit should be placed on the flat floor or be mounted in horizontal direction. Testing method: mounting-on-ceiling unit: outdoor unit: 1.air outlet from side: the noise level is the average sound pressure level measured from front, left, right directions.

  • Page 9: Safety Precaution

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 3. Safety precaution of indoor and outdoor Carefully read the following information in order to operate the airconditioner correctly. Below are listed three kinds of Safety Cautions and Suggestions. WARNING! Incorrect operations may result in severe consequences of death or serious injuries.
  • Page 10 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 WARNING! No goods or nobody is permitted to Installed electrical-leaking circuit placed on or stand on outdoor unit. breaker. It easily cause electrical shock without The falling of goods and people may circuit breaker.

  • Page 11: Net Dimension Of Indoor And Outdoor

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 4. Net dimension of indoor and outdoor 4.1 Indoor unit 1580 D = 25 D = 47 D= 200 D = 47 D = 47 D = 47 D = 47 D = 47...
  • Page 12 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 4.2 Outdoor unit HCFU-42CF03 1006 Power wiring terminal HCFU-42HF03 Screw Hole (M10) Power wiring Terminal...

  • Page 13: Installation Instructions

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 5 INSTALLATION INSTRUCTIONS Please ask the dealer or specialist to install, never try by the users themselves. After the installation please be sure of the following conditions. WARNING ! Please call dealer to install the air-conditioner.
  • Page 14 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 (5) Also, do not use an extension cord. (6) Plug in the power cord plug firmly. If the receptacle is loose, repair it before using the air conditioner. (7) Do not turn on the power until all installation work is done.
  • Page 15 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Ceiling panel 0.4"(10mm) over ACCESSORIES Optional parts Standard accessories: Ceiling panel Mark Parts name Accessory parts Remarks Qty. Adhesive tape Saddle (L.S) with screws Drain hose Remote controller Heat insulation material Piping hole cover...
  • Page 16 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 2) LOCATION OF CEILING SUSPENSION BOLTS Fig. 3 30mm 30mm Dimensions (Space Required for Suspension bolt pitch 1530mm installation) 10mm Suspension bolt should extend outward 30 to 50mm. 155mm INDOOR UNIT (TOP VIEW) 300mm For half-concealed installation Supension-bolt pitch should be as shown in Fig.4.
  • Page 17 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 INSTALLING THE INDOOR UNIT (1) Lift unit so that suspension bolts pass through suspension fittings at the sides (four places),and slide the unit back.(See Fig.8.) Fig. 7 Fig. 8 Ceiling Ceiling panel Wall Wall (2) Fasten the indoor unit into place by tightening-up the special "B",blots and the M10 nuts.
  • Page 18 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Coupler heat insulation(large) Fig. 10 Coupler pipe (large) Indoor unit Coupler pipe (small) Coupler heat insulation(small) Nylon fastner (large) No gap Indoor unit Coupler heat insulation Nylon fastner (small) When using an auxiliary pipe, make sure that the fastener used is insulated in the sane way.
  • Page 19 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 (1) Install insulation for the drain pipe.(See Fig.12 and 13) Cut the included insulation material to an appropriate size and adhere it to the pipe. Fig. 12 Drain pipe Insulation for Drain pipe (To be obtained locally.Length...
  • Page 20 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Fig. 15 A. Solid wire B. Strand wire Round terminal Loop Insulation Screw with special washer Screw with Round special washer terminal Round Terminal terminal block Wire Wire HOW TO FIX CONNECTION CORD AND POWER CABLE AT THE CORD CLAMP After passing the connection cord and power cable through the insulation tube, fasten it with the cord clamp, as shown in Fig.16...
  • Page 21 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 FRESH-AIR INTAKE (1)Take away the knockout hole for the fresh-air intake,as shown in Fig.17.(If using half-concealed installation ,take down the top knockout hole instead) Fig. 17 For half-concealed CAUTION (1)When removing the cabinet(iron plate),be careful not to damage the indoor unit internal parts and surrounding area(outer case).
  • Page 22 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Outdoor installation 1. Accessories Edging "Edging" for protection of electric wires from an opening edge. 2. Selection of the place of installation Select the place of installation satisfying the following conditions and, at the same time, obtain a consent from the client or user.
  • Page 23 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 (3) Installation Fix the unit in a proper way according to the condition of a place where it is installed by referring to the following . (a) Concrete foundation (b) Foundation anchor Unit Unit...

  • Page 24: Parts And Functions

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 6. Parts and Functions 080= ;:B0= :;0= ?480= .:8; 1 Operating Control Panel 6 Compressor Lamp 2 Emergency switch 7 Remote receiver 3 Power Indicator Lamp 8 Inlet Grill ( Filter inside ) 4 OPERATION Indicator Lamp...
  • Page 25 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 7 Infrared controller YR-H50 Manual Operation SWING Used to set UP/DOWN air sending and RIGHT /LEFT air sending direction. TEMP Used to set temp.,temp. range:16 C~30 C Timer ON/OFF display Fan speed and air sending direction display...
  • Page 26 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Clock set MODE SLEEP SWING When unit is started for the first time and after replacing batteries in remote CLOCK controller, clock should be adjusted as follows: TIMER POWER/SOFT Press CLOCK button, "AM"or "PM" flashes.
  • Page 27 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Press FAN,For each press, operation mode changes as follows: HIGH AUTO Unit runs at the speed displayed on LCD. When fan speed is AUTO,it is changed automatically according to the indoor temperature. Press ON/OFF button Unit stops running.
  • Page 28 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Press FAN button. For each press, fan speed changes as follows: HIGH AUTO Unit runs at the speed displayed on LCD. In DRY mode, when room temp.becomes 2 C lower than temp. setting,unit will run TEMP intermittently at LOW speed regardless of FAN setting.
  • Page 29 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Heating operation Note: For cooling only type, this function is invalid. Press ON/OFF button Unit starts running. The previous status appears on the display (except. TIMER, SLEEP mode) Press MODE button. For each press,operation mode...
  • Page 30 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Put louvers at up position in cooling and down position in heating mode. Note: This will be helpful to keep an even room temp. Note: In cooling or dry operation, don't put horizontal louvers at downward position for a long time, or outlet grill might get frosted.
  • Page 31 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Timer on/off operation Set Clock correctly before starting Timer operation (refer to page 2) You can let unit start or stop automatically at following times: Before you wake up in the morning, or get back from outside or after you fall asleep at night.
  • Page 32 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Wired controller YR-E12 (please see other manuals)

  • Page 33: Refrigerant Diagram

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 8. Refrigerant Diagram HCFU-42CF03...
  • Page 34 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 HCFU-42HF03...

  • Page 35: Electrical Control Functions

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 9 ELECTRICAL CONTROL FUNCTIONS 9.1 Control Features The brief introduction includes those for each item of various types of air conditioners and The brief introduction includes those for each item of various types of air conditioners and their electric control functions.
  • Page 36 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 (2) Auto Selection of Wind Speed In the following, Tr means room temperature while Ts means setting temperature. a. During cooling program conversion of wind speed from the low to high won’t work until the present speed has continued for 3 minutes while conversion from the high to low needs no time delay.
  • Page 37 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 blowing fan runs at setting wind speed. This working area is defined as area A. (2) Ts Tr Ts + 2 , the compressor and outdoor blowing fan run for 10 minutes then pause for 6 minutes, while indoor blowing fan runs at low wind speed. This working area is defined as area B.
  • Page 38 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 setting wind speed. (6) Afterheat blowing during heating program During heating program, the compressor will stop running (except overheat protection or frost removal) while the indoor blowing fan will firstly run for 50 seconds at low speed then stop.
  • Page 39 (12) Monitoring of remote network Through preset interface, the air conditioner is connected to remote control detector (made by Haier) with 2-core cables for wire communication, to execute instructions sent from computer or centralized controller via remote control detector and meanwhile send present running status and trouble information of the machine to remote control detector.
  • Page 40 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 9.2 Defrost operation flow chart Come to defrost Compressor Open outdoor fun Compressor Condition off or 55s? E-Heat off for 30s? compress Return Operation indoor fun motor Return 4-way value Turn off compressor Return...

  • Page 41: Diagnostic Information (Troubleshooting)

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 10. Diagnostic information (troubleshooting) 10.1 System failure If the refrigerant in the system cannot flow fluently or the airflow circles more slowly, please check due to the following procedures. Cooling: bad cooling if set temp. is proper change the set temp.
  • Page 42 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 12.2 Failure code The remote receiver, wired controller and indoor PCB indicator all can indicate the failure code. 12.2.1 Failure code list Failure code with wired controller YR-E12: Failure central Failure description Reason remote...
  • Page 43 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Diagnose and troubleshooting: 1) Sensor failure check if the wiring is correct according to reconnect wiring diagram if sensor is fixed Relocate well Is sensor short-circuit Replace sensor or open-circuit? Is sensor resistance Replace sensor...
  • Page 44 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 3) Low pressure abnormal If there is other failure, please check if the dip switch is correct.

  • Page 45: Electrical Data

    Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 11. Electric data 11.1 Wiring diagram HCFU-42CF03 CIRCUIT DIAGRAM OF OUTDOOR UNIT CIRCUIT DIAGRAM OF OUTDOOR UNIT 0010576533 COMPRESSOR FAN MOTOR CAPACITOR MAGNETIC FAN MOTOR CONTACTOR 3-PHASE DETECTOR CAPACITOR PRESSURE SWITCH B:BLACK BL:BLUE R:RED W:WHITE...
  • Page 46 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 HCFU-42HF03 OUTDOOR CIRCUIT DIAGRAM...
  • Page 47 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 11.2 Circuit diagram 0010451167 PCB information circuit diagram...
  • Page 48 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 0010451167 PCB information characters on board (horizontal)
  • Page 49 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 0010451167 characters on board vertical...
  • Page 50 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Condition for the PCB data: 1.Working ambient temperature: 10 70 , relative humidity:30% 95% 2.Preserved ambient temperature: 20 relative humidity 30% 95% 3.Power supply:220VAC 50/60Hz voltage range:160V 250V 4.Precise of temperature control: 1 0010451167 PCB information – port and definition...
  • Page 51 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 CN13 input signal, wiring port of remote receiver board: RECEIVE BOARD 1. power supply 5VDC, 2. power supply 0VDC, 3. remote signal, 4. signal output of running lamp 0VDC, 5. signal output of timer lamp 0VDC,6.
  • Page 52 Commercial Air Conditioner Commercial Air Conditioner Model: HCFU-42CF03 Model: HCFU-42CF03 HCFU-42HF03 HCFU-42HF03 0010451167 PCB information – function selection ON is 1, OFF is 0 The standard condition for PCB in factory SW1 4 bits are OFF SW2 4 bits are OFF...
  • Page 53 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 The standard condition for HCFU-42CF03 PCB in factory: SW1 4 bits are OFF SW2 4 bits are OFF SW3 1 ON 2 ON 3 OFF 4 ON SW4 1 OFF 2 ON SW5 1 OFF 2 ON 3 ON 4 OFF...
  • Page 54 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 0010451167 PCB information- control type Control type selection between remote and wired: select by dip switch J1, SW3-1 1 means remote control 0means wired control . For remote control type, please use remote controller, and a remote receiver is equipped with indoor unit.
  • Page 55 Commercial Air Conditioner Model: HCFU-42CF03 HCFU-42HF03 Sincere Forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

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